Safety devices for protection against excessive pressure -- Part 5: Controlled safety pressure relief systems (CSPRS)
This standard has been revised by ISO 4126-5:2013
ISO 4126-5:2004 specifies the requirements for controlled safety pressure relief systems, irrespective of the fluid for which they are designed. It is applicable to main valves having a flow diameter of 6 mm and above for use at pressures of 0,1 bar (= 0,01 MPa) gauge and above. No limitation is placed on temperature.This is a product standard and is not concerned with applications.